I suspect it will be hard to sell in BC if not registered there yet. In order for your buyer to register it in BC, they would have to have the ICBC-required inspection. If it doesn't pass that, it can't be registered in BC until it is fixed enough to pass. I live in BC and I would not buy a vehicle that was not already registered here UNLESS I felt comfortable with the history of the vehicle (or the price was so cheap). That's my take on it. Good luck.
BTW, welcome to the Forum.